2531423878 has 8 divisors (see below), whose sum is σ = 3822620400. Its totient is φ = 1257217080.

The previous prime is 2531423863. The next prime is 2531423929. The reversal of 2531423878 is 8783241352.

2531423878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4247058 + ... + 4247653.

It is an arithmetic number, because the mean of its divisors is an integer number (477827550).

Almost surely, 2^2531423878 is an apocalyptic number.

2531423878 is a deficient number, since it is larger than the sum of its proper divisors (1291196522).

2531423878 is a wasteful number, since it uses less digits than its factorization.

2531423878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494862.

The product of its digits is 322560, while the sum is 43.

The square root of 2531423878 is about 50313.2574775277. The cubic root of 2531423878 is about 1362.8716495683.

It can be divided in two parts, 2531 and 423878, that added together give a square (426409 = 653²).

The spelling of 2531423878 in words is "two billion, five hundred thirty-one million, four hundred twenty-three thousand, eight hundred seventy-eight".